mulwidgets/common/inc/mulleave.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:56:02 +0200
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/*
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* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Implementation for Leave to Throw macro
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*
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*/
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#ifndef MULLEAVE_H
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#define MULLEAVE_H
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#include <stdexcept>
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namespace Alf
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	{
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static const char* const KLeaveError = "Leave occured";
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class MulLeave
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    {
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public:
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    static void ThrowOnError( int aError )
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        {
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        switch ( aError )
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            {
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            case KErrNone: 
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            	{
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                // do nothing
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                break;
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            	}
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            case KErrNoMemory:
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            	{
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                throw std::bad_alloc(); 
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            	}
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            // add other errors here if specific exception need to throw
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            case KErrGeneral: // fall through
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            default:
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            	{
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                throw std::logic_error( KLeaveError ); 
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            	}
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            }
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        }
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    };
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	} // namespace Alf
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#define THROW_IF_LEAVES(code) TRAPD( _leave_error, { code; } ); \
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    						  Alf::MulLeave::ThrowOnError( _leave_error ); 
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#endif  // MULLEAVE_H
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// End of file
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